External Hex, Internal Hex, Internal Torx, External Torx
4 mm, 1-5/16 ", 5/8 ", 1-3/8 ", 1-1/4 "
1-1/2, 1/4, 3/4, 3/8, 1/2
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
8 in, 4-1/16 in, 4-1/8 in, 58 mm, 8 mm
8-Point, 12-Point, 6-Point, 7-Point, 4-Point
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